When iceberg season hits, whether it's because your favorite rapper came to town or the winter season is in full-swing, the Trew Gear The Polar Shift Jacket is the insulating layer to keep you warm. Built tough like all Trew Gear, the Polar Shift has 60 g Primaloft ONE® insulation for lightweight and easily compressible insulation. The jacket is reversible, so you can wear it out on back-to-back apres ski sessions without anyone being the wiser. Thumb loops keep the sleeves secure, so they won't ride up when you least expect it. The Trew Gear The Polar Shift Jacket has been tested worldwide, and has all your bases covered when the temps drop.